This really is a beautiful sculpt, and if it comes out commercially, might distract me from my usual C19 lads!
As regards the trigger guard, perhaps this will help. The guard should extend from the safety lock thumb piece at the back to the front of the bolt handle in front. It should occupy about 1/25th (roughly) of the rifle's length, and I think that yours is closer to 1/14th. But at least it's easily fixed. Congratulations!